2279844 has 72 divisors (see below), whose sum is σ = 6726720. Its totient is φ = 637632.

The previous prime is 2279843. The next prime is 2279857. The reversal of 2279844 is 4489722.

It is a super-3 number, since 3×2279844³ = 35549757945763330752, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2279799 and 2279808.

It is not an unprimeable number, because it can be changed into a prime (2279843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20862 + ... + 20970.

2^2279844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2279844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3363360).

2279844 is an abundant number, since it is smaller than the sum of its proper divisors (4446876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2279844 is a wasteful number, since it uses less digits than its factorization.

2279844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 204 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2279844 is about 1509.9152294086. The cubic root of 2279844 is about 131.6138854477.

The spelling of 2279844 in words is "two million, two hundred seventy-nine thousand, eight hundred forty-four".